Counterpoint, rational Google execs can't keep their jobs after spending 7 years sinking $Bs/year into unrecoverable investments in a product they eventually shutter. Google+ didn't require new physical infrastructure, and the other "Google kills xyz" stories are about small fry stuff.
Countercounterpoint, rational Google execs _definitely_ can't keep their jobs after spending 7 years sinking $Bs/year into unrecoverable investments in a product they eventually keep alive spending yet more $Bs/year.